
SHIP STABILITY
Quiz by Nhyle Devero
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A vessel is fitted with deep tanks with a capacity of 1,000 tons of fresh water. What quantity of oil with specific gravity of 0.9200 could be carried in such tanks?
A vessel would be referred to as "tender" when the weight of the cargo is
A semisubmersible floating in sea water displaces 717,500 cubic feet. What is the displacement?
A tanker fully loaded with oil pumped out from the stern most tank across. What will be the effect on the draft?
A tonnage tax is leveled according to the
A vessel going from salt water to fresh water would:
A vessel having a concentration of weight toward the top of the vessel is said to be
A vessel should normally behave as if all of its weight is acting downward through the center of gravity and all of its support is acting upward through the
A vessel that has a concentration of weight toward the top of the vessel is said to be
A vessel's center of gravity is lowered when the
Angular motion about the longitudinal axis of a vessel is known as
Counterflooding into empty tanks may what if the cause of sudden severe list or trim is negative initial stability?
Displacement refers to the
Due to off-center ballast the cause of severe list or trim, counterflooding into empty tanks will
Find the Displacement of a vessel if the lightship is 4,547 m/t; FO 134 m/t; DO 33 m/t; FW 40 m/t; Constant 200 m/t; Cargo 11,550 m/t; Remaining Ballast 80 m/t and the Total Moments 18,632.01
For a vessel with no sheer, which of the following will not provide extra buoyancy?
How much volume of seawater will increase the displacement by 1 ton?
If a vessel loses its reserve buoyancy, it will
If a vessel rolls to the starboard side, and there are no movable or moving weights onboard, the center of gravity will
If the buoyant force on a ship's hull is equal to or greater than the displacement tonnage, the ship will
If the cause of severe list, or trim is due to off-center ballast, counterflooding into empty tanks will
If the cause of severe list, or trim is due to off-center ballast, counterflooding into empty tanks will
In the absence of external forces, the center of gravity of a floating vessel is located directly above the
In the event of a collision, watertight integrity may be lost if
Increasing the free surface of a confined liquid has the effect of raising the
Initial stability of a vessel may be improved by
Multiplying weight to distance divided by MTC is a formula to find:
Negative initial stability if the cause of a sudden severe list, counterflooding into empty tanks may:
Plugged limber holes can endanger a ships stability by
Progressive flooding may be indicated by
Reducing the free surface of a liquid within a tank has the effect of lowering the
Repairing damage to the hull at or above the waterline reduces the threat of:
Stability is determined principally by the relationship of the center of gravity and the
Subtracting FSCT from KGT yields
The abbreviation 'GM' is used to represent the
The amount of tons required to be loaded or discharged on the tipping center of an even keel ship to increase or decrease her draft by one centimeter is:
The center of buoyancy is located at the
The difference between the height of the center of gravity and the height of the center of metacenter is
The effects of free surface on initial stability depend upon the surface area dimensions of the free liquids and the
The important stability parameter 'KG' is defined as the
The inclining experiment conducted on a merchant ship is the method for determining the exact location of the
The quality of initial stability is indicated by
The reserve buoyancy of a vessel varies directly with changes in the vessel's
The stability existing after the unintentional flooding of a compartment on a MODU is called
The stability term for the distance between the center of gravity (G) to the Metacenter (M), when small angle stability applies is known as the
The tendency of a ship to resist a change in trim is
The term Deadweight is:
The value of the maximum righting arm is dependent upon the position of the center of buoyancy and the
The water in which a vessel floats provides vertical upward support. The point through which this support is assumed to act is known as the center of
The weight of the liquid displaced by a vessel floating in sea water is equal to the
This is the important stability parameter, KG is defined:
This means storing all cargo for a port in the same area.
Those ship's tanks that are particularly important for trimming the ship are the
Transverse oscillating rotation about the longitudinal axis of a vessel is known as
Transverse stability calculations requires the use of
Under which circumstances may a metacentric height be considered an indication of a vessel's stability?
Vessel free surface correction was 10,910.Find the Corrected GM if the Displacement was 68,968 m/t; Vertical Moment 746,032 m/t; KM 13.24 M.
Vessel stability can be adversely affected by
What do you call this center if the geometric center of the underwater volume of a floating vessel?
What represents the center of gravity?
What will be the rolling period of a vessel if the Breadth was 32 M and the GM 2.26 M?
What would you do if you wanted to keep the same draft if you came from salt water to fresh water?
When a vessel is inclined, the tendency for it to return to its original position is caused by the
When a vessel is inclined, the tendency to return to its original position is caused by the :
When any tank or compartment is partially filled with a liquid free to move as the ship rolls, the free surface effect is present. This condition will usually
When stability of a vessel is neutral, the value of GM
When the height of the metacenter has the same value as the height of the center of gravity, the metacentric height is equal to
When the height of the metacenter is greater than the height of the center of gravity, the upright equilibrium position is stable and stability is
Where would you find the draft marks on a vessel?
Which abbreviation represents the height of the center of buoyancy?
Which factor does NOT affect the required freeboard of a cargo vessel?
Which location on a ship's structure of the sheering stress are usually the greatest?
Which of the following describes a tender vessel?
Which of the following will increase the positive stability of your vessel?
With no environmental forces acting on the vessel, the center of gravity of an inclined vessel is vertically aligned with the
With no environmental forces present, the center of gravity of an inclined vessel is vertically aligned with the
With no environmental forces, the center of gravity of an inclined vessel is vertically aligned with the
You are loading in a port subject to the tropical loadline mark and bound for a port subject to the winter loadline mark. You will enter the summer zone after steaming four days and you will enter the winter zone after nine days. You will consume 29 tons.
You can generally improve the vessel's stability in a hazardous situation by
Your vessel rolls slowly and sluggishly. This indicates that the vessel